Results 231 to 240 of about 111,669 (310)

Multi-walled carbon nanotube sensors

TRANSDUCERS '03. 12th International Conference on Solid-State Sensors, Actuators and Microsystems. Digest of Technical Papers (Cat. No.03TH8664), 2004
This paper presents experimental results that demonstrate the sensing capability of a multi-walled carbon nanotube (MWCNT). A MEMS-based fabrication process was developed to fabricate a device where a single MWCNT was precisely assembled across a gap.
J. Chung, K.-H. Lee, J. Lee
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Nanomechanical imaging of multi-walled carbon nanotubes

MRS Proceedings, 2003
AbstractNanomechanical mapping of individual multi-walled carbon nanotubes (MWNTs) has been undertaken to investigate intra-tube variations of mechanical response. Ultrasonic force microscopy has been used to measure the relative axial and radial variations of contact stiffness of individual MWNTs synthesized using chemical vapor deposition (CVD) and ...
Lata Muthuswami, P. M. Ajayan, R. E. Geer   +2 more
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Comparing in vitro cytotoxicity of graphite, short multi-walled carbon nanotubes, and long multi-walled carbon nanotubes

Environmental Science and Pollution Research, 2020
Occupational and environmental exposures to carbon-based materials in nano- and micro-size have been reported. There is incomplete information on the impact of size on the toxicity of carbon-based materials. The objective of this study is to compare the toxicity of graphite, short multi-walled carbon nanotubes (S-MWCNTs), and long multi-walled carbon ...
Mansour Rezazadeh Azari, Yousef Mohammadian   +1 more
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Respiratory toxicity of multi-wall carbon nanotubes

Toxicology and Applied Pharmacology, 2005
Carbon nanotubes focus the attention of many scientists because of their huge potential of industrial applications, but there is a paucity of information on the toxicological properties of this material. The aim of this experimental study was to characterize the biological reactivity of purified multi-wall carbon nanotubes in the rat lung and in vitro.
Julie, Muller, François, Huaux, Nicolas, Moreau, Pierre, Misson, Jean-François, Heilier, Monique, Delos, Mohammed, Arras, Antonio, Fonseca, Janos B, Nagy, Dominique, Lison   +9 more
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Optoelectronic modulation by multi-wall carbon nanotubes

Nanotechnology, 2013
We report the observation of photoconduction and a strong nonlinear optical absorptive response exhibited by multi-wall carbon nanotubes. An aerosol pyrolysis method was employed for the preparation of the samples. Measurements of the optical transmittance with 7 ns pulses at 1064 nm wavelength allowed us to identify a two-photon absorption effect as ...
C, Torres-Torres, N, Peréa-López, H, Martínez-Gutiérrez, M, Trejo-Valdez, J, Ortíz-López, M, Terrones   +5 more
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Electrical Characterization of Multi-Walled Carbon Nanotubes

Journal of Nanoscience and Nanotechnology, 2010
Electrical characteristics of multi-walled carbon nanotubes (MWNTs) grown by chemical vapor deposition have been investigated as a function of the bias voltage, nanotubes length and temperature, in 2 and 4 terminal configurations. Nanotubes were deposited over metal electrodes using ac dielectrophoresis method. For better contacts between the nanotubes
J, León, A, Flacker, A R, Vaz, C, Veríssimo, M B, de Moraes, S A, Moshkalev   +5 more
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Multi-walled carbon nanotube-based RF antennas

Nanotechnology, 2009
A novel application that utilizes conductive patches composed of purified multi-walled carbon nanotubes (MWCNTs) embedded in a sodium cholate composite thin film to create microstrip antennas operating in the microwave frequency regime is proposed. The MWCNTs are suspended in an adhesive solvent to form a conductive ink that is printed on flexible ...
Taha A, Elwi, Hussain M, Al-Rizzo, Daniel G, Rucker, Enkeleda, Dervishi, Zhongrui, Li, Alexandru S, Biris   +5 more
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Effects of multi walled carbon nanotubes shape and size on thermal conductivity and viscosity of nanofluids

Diamond and related materials, 2019
In this study, effective thermal conductivity and viscosity of multi walled carbon nanotubes water based nanofluids containing multi walled carbon nanotubes with various geometrical characteristics were investigated, with volume fraction 0.05 vol%.
A. Omrani, E. Esmaeilzadeh, M. Jafari, A. Behzadmehr   +3 more
semanticscholar   +1 more source

Fluorinated multi-walled carbon nanotubes as cathode materials of lithium and sodium primary batteries: effect of graphitization of carbon nanotubes

Journal of Materials Chemistry A, 2019
Fluorinated multi-walled carbon nanotubes are prepared and used as cathode materials for fabricating lithium and sodium primary batteries.
Yanyan Li, Xiaozhong Wu, Chao Liu, Shuo Wang, Pengfei Zhou, Tong Zhou, Zhichao Miao, W. Xing, Shuping Zhuo, Jin Zhou   +9 more
semanticscholar   +1 more source

Bio-functionalization of multi-walled carbon nanotubes

Physical Chemistry Chemical Physics, 2013
Here we present a hybrid approach to functionalize multi-walled carbon nanotubes in aqueous solution, exploring a non-covalent binding strategy. We focus on formation of hybrid complexes consisting of carbon nanotubes decorated by single stranded DNA, non-covalently attached using surfactants as intermediate layers.
Anindya, Majumder, Maryam, Khazaee, Jörg, Opitz, Eckhard, Beyer, Larysa, Baraban, Gianaurelio, Cuniberti   +5 more
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